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Finding the Fourth Proportional to 607,980.45, 839,016.36 and 332,338.72

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Solution

The fourth proportional to 607,980.45, 839,016.36 and 332,338.72 is: 458,629.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,980.45 : 839,016.36 = 332,338.72 : x
  2. Step 2: Convert to fraction form
    607,980.45/839,016.36 = 332,338.72/x
  3. Step 3: Cross multiply
    607,980.45x = 839,016.36 × 332,338.72
  4. Step 4: Simplify right side
    607,980.45x = 278,837,621,043.92
  5. Step 5: Solve for x
    x = 278,837,621,043.92/607,980.45
  6. Step 6: Final answer
    x = 458,629.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.